Package lazyj

Class DBProperties

java.lang.Object

java.util.Observable

lazyj.ExtProperties

lazyj.DBProperties

All Implemented Interfaces:

java.util.Observer

public class DBProperties
extends ExtProperties

Since:

May 14, 2018

Author:

costing

Constructor Summary

Constructors

Constructor	Description
DBProperties(DBFunctions connection)	Load the values from the specified database.
DBProperties(DBFunctions connection, java.lang.String tableName, java.lang.String keyColumnName, java.lang.String valueColumnName, ExtProperties parentConfig)	Load the values from the specified database, table name, primary key column and value column.
DBProperties(DBFunctions connection, ExtProperties parentConfig)	Load the values from the specified database.

Method Summary

Modifier and Type	Method	Description
java.lang.String	gets(java.lang.String sKey, java.lang.String sDefault, boolean bProcessQueries)	Get the String value for a given key, returning the given default value if the key is not defined.
void	set(java.lang.String sKey, java.lang.String sValue)	Modify an entry of the dictionary.

Methods inherited from class lazyj.ExtProperties

addPropertyChangeListener, clearCache, getb, getConfigFileName, getd, geti, getl, getProperties, gets, gets, isReadOnly, makeReadOnly, parseOption, reload, removePropertyChangeListener, setAutoReload, size, toString, toVector, update

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

DBProperties

public DBProperties(DBFunctions connection)

Load the values from the specified database. By default the table is assumed to be called "config" with a "configkey" primary key and a "configvalue" column to actually hold the values

Parameters:

connection -

DBProperties

public DBProperties(DBFunctions connection, ExtProperties parentConfig)

Load the values from the specified database. By default the table is assumed to be called "config" with a "configkey" primary key and a "configvalue" column to actually hold the values

Parameters:

connection -

parentConfig - configuration set to fall back to when the database query doesn't return anything for the given key

DBProperties

public DBProperties(DBFunctions connection, java.lang.String tableName, java.lang.String keyColumnName, java.lang.String valueColumnName, ExtProperties parentConfig)

Load the values from the specified database, table name, primary key column and value column.

Parameters:

connection -

tableName -

keyColumnName -

valueColumnName -

parentConfig - configuration set to fall back to when the database query doesn't return anything for the given key

Method Details

gets

public java.lang.String gets(java.lang.String sKey, java.lang.String sDefault, boolean bProcessQueries)

Description copied from class: ExtProperties

Get the String value for a given key, returning the given default value if the key is not defined. The value that is returned is also stored in a cache so that future requests to the same key will return the value from the cache. This also means that if the key is not defined then the given default value will be cached and returned the next time this function is called. null values are not cached.

Overrides:

gets in class ExtProperties

Parameters:

sKey - the key to get the value for

sDefault - default value to return in case the key is not defined.

bProcessQueries - flag to process or not process the database/memory cache queries

Returns:

value for this key

set

public void set(java.lang.String sKey, java.lang.String sValue)

Description copied from class: ExtProperties

Modify an entry of the dictionary.

Overrides:

set in class ExtProperties

Parameters:

sKey - key to change

sValue - new value